Schioppa, Lorenzo to Gasparri, Pietro from 14 January 1919, in: 'Kritische Online-Edition der Nuntiaturberichte Eugenio Pacellis (1917-1929)', document no. 3721, URL: www.pacelli-edition.de/en/Document/3721. Last access: 03-04-2025.Online since 04-06-2012.